<s>
Generalized	B-Application
Environmental	I-Application
Modeling	I-Application
System	I-Application
for	I-Application
Surfacewaters	I-Application
or	O
GEMSS	B-Application
is	O
a	O
public	B-Application
domain	I-Application
software	I-Application
application	O
published	O
by	O
ERM	O
.	O
</s>
<s>
GEMSS	B-Application
has	O
been	O
used	O
for	O
ultimate	O
heat	O
sink	O
analyses	O
at	O
Comanche	O
Peak	O
Nuclear	O
Power	O
Plant	O
,	O
and	O
Arkansas	O
Nuclear	O
One	O
.	O
</s>
<s>
Applications	O
of	O
GEMSS	B-Application
and	O
its	O
individual	O
component	O
modules	O
have	O
been	O
accepted	O
by	O
regulatory	O
agencies	O
in	O
the	O
U.S.	O
and	O
Canada	O
.	O
</s>
<s>
GEMSS	B-Application
can	O
also	O
provide	O
GUI	O
’s	O
,	O
grid	O
generation	O
,	O
and	O
GIS	O
linkage	O
tools	O
and	O
has	O
strong	O
documentation	O
.	O
</s>
<s>
GEMSS	B-Application
includes	O
a	O
grid	O
generator	O
and	O
editor	O
,	O
control	O
file	O
generator	O
,	O
2-D	O
and	O
3-D	O
post	O
processing	O
viewers	O
,	O
and	O
an	O
animation	O
tool	O
.	O
</s>
<s>
The	O
database	O
approach	O
is	O
also	O
used	O
for	O
field	O
data	O
;	O
as	O
a	O
result	O
,	O
the	O
GEMSS	B-Application
viewers	O
can	O
be	O
used	O
to	O
display	O
model	O
results	O
,	O
field	O
data	O
or	O
both	O
,	O
a	O
capability	O
useful	O
for	O
understanding	O
the	O
behavior	O
of	O
the	O
prototype	O
as	O
well	O
as	O
for	O
calibrating	O
the	O
model	O
.	O
</s>
<s>
The	O
field	O
data	O
analysis	O
features	O
can	O
be	O
used	O
independently	O
using	O
GEMSS	B-Application
modeling	O
capability	O
.	O
</s>
<s>
A	O
GEMSS	B-Application
application	O
requires	O
two	O
types	O
of	O
data	O
:	O
(	O
1	O
)	O
spatial	O
data	O
(	O
primarily	O
the	O
waterbody	O
shoreline	O
and	O
bathymetry	O
,	O
but	O
also	O
locations	O
,	O
elevations	O
,	O
and	O
configurations	O
of	O
man-made	O
structures	O
)	O
and	O
(	O
2	O
)	O
temporal	O
data	O
(	O
time-varying	O
boundary	O
condition	O
data	O
defining	O
tidal	O
elevation	O
,	O
inflow	O
rate	O
and	O
temperature	O
,	O
inflow	O
constituent	O
concentration	O
,	O
outflow	O
rate	O
,	O
and	O
meteorological	O
data	O
.	O
</s>
<s>
All	O
deterministic	O
models	O
,	O
including	O
GEMSS	B-Application
,	O
require	O
uninterrupted	O
time-varying	O
boundary	O
condition	O
data	O
.	O
</s>
<s>
These	O
files	O
are	O
geo-referenced	B-General_Concept
.	O
</s>
<s>
The	O
data	O
can	O
be	O
subjected	O
to	O
quality	O
assurance	O
procedures	O
by	O
using	O
GEMSS	B-Application
to	O
plot	O
,	O
then	O
to	O
visually	O
inspect	O
individual	O
data	O
points	O
,	O
trends	O
and	O
outliers	O
.	O
</s>
<s>
The	O
set	O
of	O
input	O
files	O
and	O
the	O
GEMSS	B-Application
executable	O
constitute	O
the	O
model	O
application	O
.	O
</s>
